Secure Meters Ltd. Offers Elite Dual Register. Secure Meters Ltd. Is an ISO: 27001 and ISO: 14000 certified company. Elite Dual Register is a compact, digital, multifunction panel mount meter for measurement of both mains supply and DG supply. It serves as a replacement for two separate energy meters necessary for metering application with dual energy sources. Elite Dual Register, a three phase CT/ PT operated meter, also offers load control feature and disconnects the consumer if load exceeds a certain limit. It is applicable in the fields like in commercial establishments and in residential complexes.